Return Visits per Enrollee Month (Excluding First Visit) | Incidence Rate Ratio (95% CI) | P* | Estimated Mean Return Visit Rate† (95% CI) |
---|---|---|---|
Discount level (%) | |||
0 | 1.00‡ | — | 0.32 (0.29–0.34) |
100 | 1.12 (0.97–1.30) | .118 | 0.35 (0.31–0.40) |
Age (years) | 1.007 (1.002–1.012)§ | .006 | — |
25 | — | — | 0.30 (0.26–0.34) |
50 | — | — | 0.36 (0.33–0.39) |
75 | — | — | 0.43 (0.35–0.50) |
Sex | |||
Male | 1.00‖ | — | 0.30 (0.26–0.33) |
Female | 1.26 (1.10–1.45) | .001 | 0.37 (0.34–0.41) |
Clinic | |||
Gabriel Park | 1.00¶ | — | 0.29 (0.25–0.33) |
South Waterfront | 1.31 (1.12–1.54) | .001 | 0.38 (0.35–0.41) |
All results are adjusted for each of the covariates listed in the first column.
* P values were obtained by the Wald χ2 test for Poisson regression.
† Estimated mean return visit rates were calculated while holding covariates constant at their average values.
‡ Reference group is the 0% discount level.
§ Incidence rate ratio is for every 1-year increase in age.
‖ Reference group is men.
¶ Reference group is the Gabriel Park clinic.